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muminat
2 years ago
13

In which state of matter would you expect to find water, at 20°C on Earth?

Chemistry
1 answer:
ad-work [718]2 years ago
5 0
Liquid because 20 Celsius is 68 Fahrenheit<span />
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Help me please) attached the screen below. Thanks
Vitek1552 [10]

Answer:

1) d = 2.4 g/cm³

2) m = 25 g

3) v = 126.7 cm³

Explanation:

Given data:

Mass of material = 24 g

Volume of material = 10 cm³

Density of material = ?

Solution:

Formula:

d = m/v

by putting value,

d = 24 g / 10 cm³

d = 2.4 g/cm³

2) Given data:

Density of material = 5 g/cm³

Volume of material = 5 cm³

Mass of material = ?

Solution:

Formula:

d = m/v

5 g/cm³ = m / 5 cm³

m = 5 g/cm³×5 cm³

m = 25 g

3)Given data:

Density of material = 3 g/cm³

Mass of material = 380 g

Volume of material =  ?

Solution:

Formula:

d = m/v

3 g/cm³ = 380 g / v

v = 380 g /3 g/cm³

v = 126.7 cm³

7 0
3 years ago
Essential life materials, like nitrogen and carbon, are exchanged and recycled through _____.
SpyIntel [72]

The answer is A, biogeochemical cycles.

5 0
3 years ago
Read 2 more answers
Question 34 (1 point)
Grace [21]

Answer:

8.33 atm

Explanation:

Xe is   5  out of (4+5)   or   5 / 9 ths of the gas present

  5/9  * 15 atm = 8.33 atm

4 0
1 year ago
How many atoms in 2.25 mol of O2
Luden [163]

Answer:

1 molecule of oxygen has 2 atoms.

So 2,25 molecules of oxygen have 2 x 2,25 atoms.

2 x 2,25 = 4,5 atoms

There are 4,5 atoms in 2,25 molecules oxygen.

3 0
3 years ago
Choose the description that matches the law of included fragments.
GREYUIT [131]

Answer:

The answer is B

Explanation:

3 0
2 years ago
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